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Desmodur® N 3600

Aliphatic polyisocyanate (low-viscosity HDI trimer). Use as the hardener component for flexible, lightfast polyurethane coating systems.

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General Characterization

Desmodur N 3600 is an aliphatic polyisocyanate (low-viscosity HDI trimer).
It is suitable for use as the hardener component for flexible, lightfast polyurethane coating systems.

Storage Conditions

Desmodur N 3600 should be stored in tightly sealed original containers and protected from moisture, heat, and foreign materials. The product is sensitive to moisture. Storage at higher temperatures will result in increase of color and viscosity. Storage at significant lower temperatures will result in solidification. This solidification is reversible by briefly heating the product without adversely affecting the quality of the product. Recommended storage temperature is 0º-30ºC.

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Technical Properties & Datasheets

Characteristics

Property Name Test Method Unit Value
Weight per gallon at 20°C lb. 9.66
Equivalent weight approx. 183
Viscosity at 23°C mPa∙s approx. 1,200
Specific gravity at 20°C g/cm^3 approx. 1.16
Flash point °C approx. 158

Specifications

Property Name Test Method Unit Value
Viscosity at 25°C mPa∙s 800 - 1400
Monomeric HDI % ≤ 0.25
NCO content % 23.0 ± 0.5
Hazen color value ≤ 40

Downloads

Technical Data Sheet
Safety Data Sheet
No direct download available, please visit www.productsafetyfirst.covestro.com

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